25423245 has 48 divisors (see below), whose sum is σ = 47174400. Its totient is φ = 12621312.

The previous prime is 25423243. The next prime is 25423247. The reversal of 25423245 is 54232452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25423243) and next prime (25423247).

It is not a de Polignac number, because 25423245 - 2¹ = 25423243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 127656 + ... + 127854.

It is an arithmetic number, because the mean of its divisors is an integer number (982800).

Almost surely, 2^25423245 is an apocalyptic number.

It is an amenable number.

25423245 is a deficient number, since it is larger than the sum of its proper divisors (21751155).

25423245 is a wasteful number, since it uses less digits than its factorization.

25423245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 391 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25423245 is about 5042.1468641839. The cubic root of 25423245 is about 294.0426496505.

Adding to 25423245 its reverse (54232452), we get a palindrome (79655697).

The spelling of 25423245 in words is "twenty-five million, four hundred twenty-three thousand, two hundred forty-five".